Robot-Assisted Radical and Partial Cystectomy



Fig. 16.1
Schematic overhead view of operative setup for robot-assisted radical cystectomy. (A) Surgeon, (B) Console, (C) da Vinci®, (D) Scrub nurse, (E, J) High-definition monitors, (F) Right assistant, (G) Anesthesia





Patient Positioning and Preparation


We place the patient in the dorsal lithotomy position using standard operative stirrups. With the table flat, we then tuck the patient’s arms at the side. All pressure points are protected using standard eggcrate foam padding. Sequential compression stocking devices are placed on both legs and are activated. We also routinely administer 5000 units of subcutaneous heparin. Next, the patient is secured to the operating table using a cross-shoulder harness made by four strips of eggcrate foam padding. Each strip is 6 × 24 in., and two strips are used on each side of the patient creating an “X” configuration across the patient’s chest. The pads are secured to the operating table using cloth tape. Care must be taken not to secure the lower portion of the pads below the costal margin, as this may interfere with subsequent lateral trocar placement. Once the patient is secured to the table, the leg attachment is lowered and the patient is placed in 30–40° steep Trendelenburg position (Fig. 16.2). Of note, the anesthesia team places an orogastric tube to low wall suction for the duration of the case, and a foam padding is placed over the patient’s face to prevent injury from the camera, particularly when the 30°-down lens is being used. A urethral catheter is placed on the operative field.

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Fig. 16.2
Final patient positioning with the patient secured to the table with a cross-shoulder harness “X” configuration (A) and the arms tucked at the side (B)


Trocar Configuration


Our standard trocar configuration for robot-assisted radical cystectomy is shown in Fig. 16.3. Insufflation of the abdominal cavity is performed using a Veress needle to 15 mmHg, which in general is maintained throughout the operation. In particularly obese patients, communication with the anesthesia team is imperative as pneumoperitoneum can result in unacceptably high inspiratory pressure necessitating a lower abdominal insufflation pressure. Once the abdomen has been insufflated, we place a 10–12 mm, blunt, disposable trocar in the periumbilical location as our camera trocar. We mark a standard laparotomy incision at the beginning of the case and use the superior 1 cm of the curvilinear, periumbilical portion of the incision for our robotic camera trocar. The 30°-up lens is then passed through this trocar to aid in subsequent trocar placement. At this point, the left 8 mm robotic trocar is placed 10 cm lateral to, and 2 cm inferior to, the camera trocar. A second 8 mm robotic trocar is placed in the midaxillary line 3 cm superior to the ASIS . With the assistant on the left holding the camera, we then place our right 8 mm robotic trocar 10 cm lateral to, and 2 cm inferior to, the camera trocar. A Versaport™ Plus (Covidien, Mansfield, MA), 5–15 mm trocar, is then placed as the main right assistant trocar in the midaxillary line 3 cm superior to the anterior superior iliac spine (ASIS ). A 5 mm AirSeal® Access Port (SurgiQuest, Milford CT) used primarily by the right-sided assistant for suction-irrigation is then placed midway between the camera trocar and the right robotic trocar. We place our suction trocar in the same axial plane as the camera trocar, because placement of this trocar in a lower position can limit movement between the camera and right robotic arm. Because our suction is in a slightly higher position, we use the extra long suction tip adapter to reach the most dependent portions of the pelvis.

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Fig. 16.3
Trocar configuration for robot-assisted radical cystectomy. Top figure demonstrates overhead view of trocar configuration and bottom figure demonstrates view from the patient’s feet. (A) Main right-sided assistant trocar, (B) and (E) 8 mm robotic trocars, (C) secondary right assistant trocar, (D) camera trocar, (F) left-sided 8 mm robotic trocar


Instrumentation and Equipment List



Equipment






  • da Vinci® Si or Xi Surgical System


  • PreCise™ bipolar forceps (Intuitive Surgical, Inc., Sunnyvale, CA)


  • EndoWrist® curved monopolar scissors (Intuitive Surgical, Inc., Sunnyvale, CA)


  • EndoWrist® needle drivers (2) (Intuitive Surgical, Inc., Sunnyvale, CA)


  • EndoWrist® Vessel Sealer (Intuitive Surgical, Inc., Sunnyvale, CA)


  • InSite® Vision System with 0° and 30° lens (Intuitive Surgical, Inc., Sunnyvale, CA)


Trocars






  • 5–15 mm trocar


  • 10–12 mm blunt trocar (or standard 8 mm Xi robotic trocar for Xi system)


  • 8-mm robotic trocars (3)


  • A 5 mm AirSeal® Access Port (SurgiQuest, Milford CT)


Recommended Sutures (See Table 16.1)





Table 16.1
Recommended sutures




















































Suture

Length

Needle

Procedure

Note

0-polyglactin tie (secured to medium-large Hem-o-lok® clip)

Full length (24 in.)
 
Used to tag the ureter once it is transected

Dyed (right) and undyed (left)

0-polyglactin

8 in.

GS-21

Ligation of dorsal venous complex (DVC)
 

2-0 Biosyn (undyed)

10 in.

GU-46

Urethral-neobladder anastomosis
 

2-0 Monocryl (dyed)

10 in.

UR-6

Urethral-neobladder anastomosis

Sutures are tied together to create a double-armed suture

0-Maxon

Full length

GS-21

Fascial closure of periumbilical incision
 

4-0 Biosyn

Full length

P-12

Skin closure
 


Instruments Used by the Surgical Assistants






  • MicroFrance® grasper (Medtronic, Inc., Minneapolis, MN)


  • Laparoscopic scissors


  • Hem-o-lok® clip applier (Teleflex Medical, Research Triangle Park, NC)


  • Medium, Medium-Large, Large, and Extra-Large Hem-o-lok® clips (Teleflex Medical, Research Triangle Park, NC)


  • Endo Clip™ 10 mm multifire titanium clip applier (Covidien, Mansfield, MA)


  • 15 mm Endo Catch™ retrieval device (1) (Covidien, Mansfield, MA)


  • 10 mm Endo Catch™ retrieval device (2) Suction-Irrigator device


  • 15Fr round Jackson–Pratt drain


  • 24Fr Malecot suprapubic tube


  • 20Fr urethral catheter with 5 cm3 balloon


  • 7Fr single J ureteral catheter (2)


  • Endo Close™ fascial closer device (Autosuture, Covidien, Mansfield, MA)


Step-by-Step Technique (Video 16.1)



Step 1: Identification and Dissection of the Ureter (Table 16.2)





Table 16.2
Identification and dissection of the ureter: surgeon and assistant instrumentation
























Surgeon instrumentation

Assistant instrumentation

Right arm

Left arm

Third arm

• Curved monopolar scissors

• PreCise™ bipolar forceps

• PrograspTM forceps

• Suction-irrigator

Endoscope lens: 30° down

• MicroFrance® grasper

Unless stated otherwise, robot-assisted radical cystectomy is performed using the 30°-down lens. For the majority of the operation, curved monopolar scissors are used in the right robotic arm and the PreCise™ bipolar forceps in the left, with the Prograsp forceps in the third arm. Electrocautery settings are 30 W for both monopolar and bipolar devices. The procedure begins by identification and dissection of the ureters. Identification of the left ureter (Figs. 16.4 and 16.5) begins with the right assistant retracting the sigmoid colon medially using a MicroFrance® grasper. The surgeon incises the posterior peritoneum along the white line of Toldt, sweeping the bowel medially and exposing the psoas muscle. The peritoneum overlying the external iliac artery is opened. The ureter is easily identified medially along the psoas and crossing the external iliac artery. The ureter should not be directly grasped by the surgeon or the assistants, and effective ureteral retraction can be accomplished by placing the left robotic grasper beneath the ureter and elevating it gently. The ureter is then dissected proximally as high as possible to the level above the level of the gonadal vessels. Distal dissection is performed to the level of the ureteral hiatus. During distal ureteral dissection, the vas deferens and the obliterated umbilical artery are encountered, clipped, and divided. The final portion of ureteral dissection is performed after division of the anterior pedicle.

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Fig. 16.4
(a, b) View of the left pelvic sidewall, iliac vessels, and left ureter (foreground) being dissected toward the bladder. Pertinent anatomy includes (A) pelvic sidewall and external iliac artery, (B) hypogastric artery, (C) left ureter, retracted anteriorly by left robotic arm, (D) bladder and ureteral hiatus, (E) rectum, (F) sigmoid colon, (G) right robotic arm, and (H) suction-irrigator


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Fig. 16.5
Schematic drawing showing the early development of the avascular plane between the left side of the bladder (B) and left pelvic sidewall and iliac vessels (A). The arrows indicate the blunt horizontal sweeping motions used to develop the avascular plane. The peritoneal reflection is denoted by (E)


Step 2: Development of the Anterior Bladder Pedicle


Development of the anterior bladder pedicle, shown in Figs. 16.5 and 16.6a, b on the patient’s left side, begins with identifying the avascular plane located between the pelvic sidewall and the bladder. We begin developing this avascular plane by placing both robotic instruments in the space between the left pelvic sidewall and the bladder (Fig. 16.5). Then, using broad, horizontal sweeping movements with the robotic arms, the avascular plane is developed, as shown in Fig. 16.6a, b. The left obturator nerve and pelvic sidewall are shown here as the lateral border of the avascular plane. The suction device is retracting the bladder and left ureter medially which reveals the fibrous connective tissue of the avascular plane.

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Fig. 16.6
(a, b) View of avascular plane between the left side of the bladder and pelvic sidewall with pertinent anatomy including (A) left pelvic sidewall and external iliac vessels, (B) bladder, (C) avascular plane, (D) suction-irrigator, (E) peritoneal reflection, and (F) left obturator nerve


Step 3: Transection of the Anterior Pedicle and Ureter (Table 16.3)





Table 16.3
Transection of the anterior pedicle and ureter: surgeon and assistant instrumentation





























Surgeon instrumentation

Assistant instrumentation

Right arm

Left arm

Third arm

• Curved monopolar scissors

• PreCise™ bipolar forceps

• PrograspTM forceps

• Suction-irrigator

• Vessel Sealer

• MicroFrance® grasper

Endoscope lens: 30° down

• LigaSure™ device

• Hem-o-lok® applier

Development of the avascular plane between the left bladder and sidewall reveals the anterior bladder pedicle, shown on the patient’s left side in Fig. 16.7a, b, just lateral to the ureteral hiatus. The anterior pedicle which contains the superior vesicle artery can be secured and divided using the Vessel Sealer. Prior to ureteral transection at the hiatus, a large Hem-o-lok® clip is applied distally and a second large Hem-o-lok® clip, which is attached to a long 0-polyglactin suture , is applied proximally on the ureter. The suture on the ureter facilitates subsequent ureteral identification during the later steps of urinary diversion. Additionally, we recommend using dyed and undyed polyglactin sutures to enable distinction between the right and left ureters. The left ureter, once divided, remains on the left side of the patient’s body until after the cystectomy and lymph node dissection is performed to be passed by the assistant uses a MicroFrance® grasper to the right side. A similar dissection is carried out on the right side exposing the right anterior bladder pedicle, ureter, and pelvic sidewall.
Jul 17, 2017 | Posted by in UROLOGY | Comments Off on Robot-Assisted Radical and Partial Cystectomy

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